A statistical mechanics approach for scale-free networks and finite-scale networks

Details A statistical mechanics approach for scale-free networks and finite-scale networks A statistical mechanics approach for scale-free networks and finite-scale networks

2007-03-07

arxiv.org/abs/cond-mat/0703191v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

(6 pages, 5 figures)

Scientific paper

10.1063/1.2720642

We present a statistical mechanics approach for the description of complex networks. We first define an energy and an entropy associated to a degree distribution which have a geometrical interpretation. Next we evaluate the distribution which extremize the free energy of the network. We find two important limiting cases: a scale-free degree distribution and a finite-scale degree distribution. The size of the space of allowed simple networks given these distribution is evaluated in the large network limit. Results are compared with simulations of algorithms generating these networks.

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